package thread;

public class SyncDemo3 {
    public static void main(String[] args) {
//        Boo b1 = new Boo();
//        Boo b2 = new Boo();
//        Thread t1 = new Thread(()->b1.doSome());
//        Thread t2 = new Thread(()->b2.doSome());
//

        Thread t1 = new Thread(()->Boo.doSome());
        Thread t2 = new Thread(()->Boo.doSome());


        t1.start();
        t2.start();


    }
}




class Boo {
    //    public synchronized static void doSome(){
    public static void doSome() {
        synchronized (Boo.class) {
            try {
                Thread t = Thread.currentThread();
                System.out.println(t + "正在执行doSome方法");
                Thread.sleep(5000);
                System.out.println(t + "执行doSome方法完毕");
            } catch (InterruptedException e) {
            }
        }
    }
}